Pf. Tae Woo Kim developed one of the most easiest way to correct anterior open bite. You just need to place one palatal mini-screw (TAD) on the mid-palate (1.6x 6 mm).
Instead of placing buccal mini-screw, you place thick stainless steel wire (19×25 SS). This will prevent lingual tipping when power chain was connected from the palatal mini-screw and TPA.